baber/WOPTO huggingface dataset:
Patent GB-298695-A (GB)
Title: Improvements in or relating to electric heaters
IPC: H05B3/00
Filed: 1927-07-18
Abstract: 298,695. Peard, O. L., and Harrison, A. F. July 18, 1927. Wire resistances, cored. - For an electric heater to be operated at a temperature not exceeding 200‹ F. wire of low specific resistance, such as copper or aluminium, insulated by cotton covering or enamel, is wound on hollow cylinders of non-magnetic material, having a coefficient of expansion greater than that of the wire, so, that by their expansion they take up the slackness produced on heating. The cylinders may be zinc covered with asbestos paper.
Patent GB-976029-A (GB)
Title: A device for beheading flower-bulb-plants
IPC: A01D33/02
Filed: 1963-05-15
Abstract: 976,029. Beheading flowers. A. J. C. ALKEMADE. May 15, 1963 [May 15, 1962], No. 19273/63. Heading A1F. A machine for beheading the flowers of bulbplants includes a series of guides 4 extending parallel to the direction of motion of the machine 1, and an endless-belt knife 6 running below the guides, which are formed by endless ropes of which the upper runs travel rearwardly. The knife includes blades 7 secured to the belt which passes around pulleys, of which one 9 is driven, by gearing 24 and a chain drive, from a shaft connected to the towing tractor. The same shaft also drives an endless conveyer 10 which carries the flower-heads to a pair of crushing rollers 13, 14 which deliver crushed heads into a receptacle 17 through a funnel-like casing 15. Between the guide-ropes extend band-conveyers 5 which carry the heads from the band-knife to the conveyer 10. A plate 38 extends from beneath the bandknife to the rear of the machine to prevent pollen falling on to the cut stems. Partitions 31 terminating downwardly in V-shaped guides are arranged above the lower run of each guide-rope 4. The ground-wheels 2 of the machine are vertically adjustable by screws 3.
Patent GB-115414-A (GB)
Title: Improvements in or relating to Dynamo-electric Machines for use with Internal Combustion Engines and Vehicles Propelled thereby.
IPC: H02K23/50
Filed: 1917-12-31
Abstract: 115,414. Bijur Motor Lighting Co., (Assignees of Wolffsohn, L. M.). April 30, 1917, [Convention date]. Exciting, coils and conductors; dynamos, regulating.-In dynamo and battery equipment for motor-vehicles driven by internal-combustion engines, the ignition coil 20 is supplied with current from a main brush 4 and an additional brush 14 so arranged that, due to the armature reaction, the voltage on the coil increases as the speed rises, so as to exceed that of the dynamo. In the arrangement shown in Fig. 1, the main brushes 3, 4 of a four-pole generator are connected by an automatic switch 10 of known type to the battery 7, a substantially constant current output being obtained by the use of a shunt field winding 24 across the main brushes 3, 4 and an additional field coil 25 connected between the brush 3 and a fourth brush 23. The brush 14 has preferably more than the width of one and less than the width of two commutator bars in advance of the brush 3. The field coil 24 may be insulated with asbestos so that, as the temperature of the engine rises, the resistance of the coil 24 increases and the current output decreases. The windings 8, 11 of the switch 10 are preferably such that the switch is closed when the voltage of the generator is appreciably above that of the battery, and is opened when that of the battery is appreciably in excess of that of the generator, thus preventing repeating opening and closing around the critical value. Through a small range of voltage, the battery may therefore motor the generator. In a modified arrangement, the dynamo is regulated for constant voltage, a shunt field coil being connected to the main brushes through a resistance, which is normally shortcircuited but is thrown into the field circuit when the voltage rises sufficiently to energize a relay also connected across the main brushes. The arrangements of the automatic switch and the ignition circuit are the same as in the arrangement shown in Fig. 1.
Patent GB-263061-A (GB)
Title: Improvements in or relating to display stands for collars and similar articles of wear
IPC: A47F7/12
Filed: 1926-08-04
Abstract: 263,061. Schroth, A. Aug. 4, 1926. Rack stands and suspended racks comprise a celluloid or like non- metallic plate a with resilient tongue clips b for collars &c., and a hinged frame d for supporting the stand inclined. A suspension eyelet e may be provided, and a stiffening bar f.
Patent GB-1478000-A (GB)
Title: Perfume carriers based on polyurethane-polyurea gels
IPC: A61L9/04
Filed: 1976-05-11
Abstract: The scent-containing carrier on a gel base contains a water- and/or alcohol-containing polyurethane-polyurea polymer as carrier material. This carrier is obtained by reacting isocyanato-containing prepolymers of polyethers containing at least 40% by weight of ethylene oxide units with di- or polyamines or water as chain extender in water and/or alcohols in the presence of scents.
Patent GB-717241-A (GB)
Title: Improvements relating to draw-off cocks
IPC: F16K3/24
Filed: 1951-08-16
Abstract: 717,241. Valves. FALKIRK IRON CO., Ltd., and BRADLEY, P. R. March 12, 1953 [Aug. 16, 1951], No. 19328/51. Class 135 A draw-off cock comprises a plunger 8 reciprocable by a knob 14 to coact with a circularsection rubber &c. sealing ring 5a held in a recess 4a by an outlet nozzle 7. A similar ring 5 retained by a cap 6 serves as a gland. Movement of the plunger in the opening direction is limited by engagement of a washer 11 with a flange 12 in the cap 6. A screwed plug 16 facilitates cleaning and lubrication. It is stated that the plunger may be operated by a lever mechanism.
Patent GB-584338-A (GB)
Title: Improvements in or relating to expansion bolt devices
IPC: F16B13/06
Filed: 1944-10-09
Abstract: 584,338. Bolt hole bushes. PHILLIPS, N. Oct. 9, 1944, No. 19354. [Class 89 (i)] [Also in Group XXII] Relates to expansion bolt devices of the kind described in Specification 367,547 and consists in improvements in the expandible socket members described in Specification 437,297. These sockets are usually produced by casting lead and if the fingers be connected only by an annulus at the base there is difficulty in obtaining sound castings with a sufficiently high rate of production. The slots 2 separating the fingers are therefore bridged by webs 3, Fig. 2, connecting the fingers. The webs may vary in thickness in the axial direction or may be discontinuous. In a modification the additional connection is by an external annulus 3b, Fig 6. Instead of projecting, this annulus may be at the outer or inner edge of the fingers. The annulus may be preformed and placed in the mould during casting or may be applied to the socket after casting, but in this case the socket is only strengthened during handling and manufacture is not facilitated.
Patent GB-638922-A (GB)
Title: An improvement in or relating to power take-offs in motor vehicles
Inventor: ASHFIELD HERBERT EDWARD
IPC: B60K17/28
Filed: 1948-07-21
Abstract: 638,922. Change-speed gear. BROWN TRACTORS, Ltd., D. July 21, 1948, No. 19419/47. [Class 80 (ii)] [Also in Group XXXI] In a motor vehicle (see Group XXXI) a powertake-off shaft b has slidably mounted thereon a pair of integral gear wheels C, C<1>, and is driven by a layshaft a, which is capable of being driven at two different speeds (Specification 558,392 is referred to) and has fixed gear wheels a<2>, a<1>. The gear c<1> is engageable with the gear a<2> or c with a<1> and the shaft b may therefore be driven at two different speeds for each speed of the shaft a.
Patent GB-1468923-A (GB)
Title: Washing machine
IPC: F04B17/04
Filed: 1974-05-03
Abstract: 1468923 Washing machines EUROPE MFG TRUST REG 3 May 1974 [3 May 1973] 19441/74 Heading D1A A tank 5 Fig. 1 e.g. for additives such as detergent is located under the laundry container or drum 2 of a domestic washing- machine and a pump operated by the machine timer raises the water into an upper tank 32 for discharge into the container 2. The amount discharged is metered by a valve 23 which is adjusted by a knob 31 an eccentric 29 and a pusher 28 and spring 27. The pump may be a diaphragm type 10..14 Fig. 1, or an electromagnetic - actuated bucket - type pump Fig. 2 (not shown). The washing- machine may use other similar tank-pump arrangements for other solutions or additives.
Patent GB-333014-A (GB)
Title: Improvements in u-tube thermometers, adapted to close electric circuits when maximumand minimum temperatures are reached
IPC: G01K5/16
Filed: 1929-06-25
Abstract: 333,014. Benson, H. S. June 25, 1929. Thermometers.-In a circuit-closing device of the kind in which mercury in a U-tube is moved by expansion or contraction of a liquid above it to engage electric contacts, each limb of the U-tube is provided with a cock by which the mercury can be isolated in the U-tube. The metal U-tube A, filled with mercury, is joined through a cock B<1> and unions a, H to a tube J which is closed by a cap K and contains air at atmospheric pressure. The other end of the U-tube is joined through a cock B and unions a, b to an inverted U-tube C, provided with a closed chamber D and containing an expansive fluid. The cocks, Fig. 2, are of metal with an insulating sleeve m through which a contact wire p passes into the bore g. When the fluid in the tube C expands, the mercury is moved to engage the contact in cock B<1>, the metal U-tube A forming the return lead for the circuit. In case of contraction of the fluid, the mercury closes a circuit through the contact in cock B. Further contacts q and q<1> may he provided for the indication of different degrees of temperature.
Patent GB-332373-A (GB)
Title: Improvements in or relating to calculating apparatus
IPC: G06G1/12
Filed: 1929-06-25
Abstract: 332,373. Barnes, J. W. June 25, 1929. Slide - rules. - The readings of air-speed and height indicators on an aircraft mav be corrected by means of a calculating - instrument comprising logarithmic scales and pointers. In the form shown in Fig. 1, (filed with the Provisional Specification), a disc 1 is inscribed with scales 2, 3 of absolute temperatures and of heights as given by a meter set for standard barometric pressure. Below the disc and cooperating with these scales are sets of pointers 4, 5, 6 and 10, 11, 12, and behind these again is a graduated rotatable disc 16 bearing scales of air speeds and heights. The pointers 4 and 5 are integral and effect movement of pointer 6 through a connection at 7, the pointer 6 being pivoted at 9 to have a reduced movement. A similar arrangement obtains with the other set of pointers the pointer 12, however, being further reduced in movement to about two-thirteenths of that of the pointers 10, 11. The pointers 4 and 10 having been set to the indicated temperature and height, the disc 16 is turned to bring the indicated height below the pointer 12 whereupon the corrected height may be read off at pointer 5. Similarly the disc 16 may be set with respect to pointer 11 to give the corrected air speeds at pointer 6. In the modified form shown in Fig. 2 (filed with the Complete Specification), the disc 16 is smaller and is placed in front of the first disc. Moreover, the pointer 10 is adjustably connected at 19 with an arm 21 rigid with the pointer 11. The pointer 10 is also connected by a pin with an arm operating the pointer 12 as in the first form. The arm 21 is graduated at 22 in terms of pressure and can be clamped to the base plate by a screw 23. In the use of this construction, the pointer 10 is set to the ground pressure on scale 22 and then clamped to the arm 21, after which the instrument may be used as in the first form.
Patent GB-897831-A (GB)
Title: Improvements relating to fasteners
Inventor: GARMAN DONALD F
IPC: F16B5/12
Filed: 1959-06-08
Abstract: 897,831. Stud and socket fastenings. PRESTOLE CORPORATION. June 8, 1959, No. 19579/59. Class 44. An assembly consists of a moulding strip M secured to an apertured panel P by means of a fastener 10, the moulding strip being formed with a web and longitudinal flanges F on its undersides and the fastener comprising a single strip of resilient material in the shape of a head 11 and a snap engaging stud inclined to one another at approximately right angles, the head being part circular and formed with a pair of spaced, diametrically opposed, camming surfaces 11 a the approximate centre of the heads being offset with respect to the major axis of the stud, the snap-engaging stud being engaged in the aperture in the panel so that the fastener is rotatable in the aperture about the major axis of the stud and the head of the fastener being engaged with the moulding strip, each camming surface of the head bearing against a longitudinal inner side surface of the moulding strip. The stud consists of a pair of arms 14, 15 as shown but alternatively can be of V-shape with snap engaging elbows. The stud arms may be connected directly to the camming surfaces 11 or may be spaced therefrom and connected to them by arms 13 as shown; the stud arms may be either inside the head or outside it. Opposite the stud the head can be provided with a U or V-shaped detent 12 which projects downwardly to engage the panel P. The heads can be provided with flat portions to limit its rotation.
Patent GB-823249-A (GB)
Title: Anti-corrosion oils
Inventor: WESTLAND RICHARD JAMES
IPC: C23F15/00
Filed: 1956-06-25
Abstract: A rust-preventive composition comprises a major proportion of a white spirit solvent, a minor proportion of an alkali or alkaline-earth metal petroleum mahogany sulphonate, a minor proportion of a protective fatty or oily material and a minor proportion of a cyclohexanol substituted with a C1-C6 alkyl group.  The solvent is preferably present in an amount of 50-85% by weight of the composition and the alcohol may be used in amounts of 1-10%.  The sulphonates are added in amounts of 1-10% by weight of the composition generally as soap concentrates in mineral oil.  The fatty or oily material is preferably lanoline, wool fat, bitumens, heavy hydrocarbon oils, animal fats, pentaerythritol mono- or di-oleate, glyceryl mono- or di-oleate or cetyl or stearyl alcohol.  Hardened lanoline such as the magnesium, calcium or barium salts may be used also lanoline neutralized with caustic soda or potash.  Amounts of 1-30% by weight of the composition are used.  1-10% of petrolatum may also be added.  Optional additives are 1-5% by weight of an alkanolamine such as mono-, di- or tri-ethanolamine, trimethanolamine, ethanolpropanolamine or diethylethanolamine as a finger-print remover; 0.1-2% by weight of an alkali metal benzoate as a ferrous metal anti-corrosive agent and when lanoline or wool fat is the protective material 1-10% by weight of petrolatum and up to 10% by weight of a spindle oil.
Patent GB-335579-A (GB)
Title: Improvements in or relating to selector switches suitable for use in telephone systems
IPC: H01H67/06
Filed: 1929-06-26
Abstract: 335,579. Standard Telephones & Cables, Ltd., (Deakin, G., and Schreiber, J. J.). June 26, 1929. Automatic exchange selectors.-In a trip spindle type selector a common drive and driven gear is provided for both the wiper carriage and the trip spindle so that a movement of the wiper carriage before entering the terminal bank determines the brush selection. The brushes, which are of the type described in Specification 331,272, are mounted on the carriage 8 in bearings 9, 10 of which the lower (9) is adjustable. It is driven from a continuously rotating drive 35 through the flexible gear wheel 36 which is warped out of engagement when not in use. The wheel 36 also drives the trip spindle shaft 11 through 37. A roller 14 resets the used brushes as the carriage returns to normal. Connection with the brushes is established over springs 6 and springs 19 are closed by plunger 20, when the selector regains its home position. The brush carriage is shown in its home position in Fig. 2 and off normal in Fig. 1. During the motion of the trip spindle revertive impulses are returned by the interaction of 7 and 17. The tension of restoring springs 31, 45 of operating magnets 4 and 5 may be adjusted by screws 53, 54 acting on angle pieces 48 and 49 respectively. When a call originates, magnets 4 and 5 energize allowing gear wheels 35, 36 and 37 to engage. The brush carriage and trip spindle rotate, and when the trip spindle has been set to the required position magnet 5 releases, warpmg 36 out of engagement with 37 and stopping the trip spindle by means of back stop 52 (see Fig. 3). The wheels 36, 37 continue to rotate, wheel 42 keeping 36 out of engagement with 37, and just before the brush carriage reaches the terminal bank trip spindle 11 releases the required brush set. The selected brushes are moved over the terminals either to a free line (in the case of a hunting switch) or to a required terminal-set, when magnet 4 de-energizes warping 36 out of engagement with 35 and stopping the brush carriage. When the call is released magnets 4 and 5 again energize restoring the brush carriage and trip spindle to normal, the used brush set being reset by roller 14. On reaching the home position 23 operates plunger 20 and springs 19 are made to stop the switch. The gearing and home position of the brush carriage are arranged so that the trip spindle can be set to its last position before it is reached by the brush carriage and so that the trip spindle always reaches its home position before the brush carriage is fully restored. An alternative in which 36 is warped into, instead of out of, engagement with 37 is described.
Patent GB-147658-A (GB)
Title: Process for the manufacture of anhydrous sulphide of zinc and of lithopones
IPC: C09C1/06
Filed: 1920-07-08
Abstract: 147,658. Coppet (nÚe Duboux), Veuve M. J. I. de, (Representative of Coppet, J. de). Sept. 11, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Pigments.-Anhydrous zinc sulphide is prepared as described below from the hydrated sulphide obtained by treating zinc hydroxide, heated to 90-100‹ C. by means of steam, with sufficient sodium sulphide. The resulting caustic soda is decanted off and is used to prepare a fresh amount of zinc hydroxide from zinc sulphate. Periodically it is necessary to purify the caustic soda by crystallization and to reject the mother liquor which becomes charged with impurities. The precipitation of the zinc hydroxide is performed hot, to avoid the formation of a gelatinous product of low density, and the sodium sulphate simultaneously produced is used to prepare barium sulphate and sodium sulphide from barium sulphide. The latter is obtained by the reduction of barium sulphate by means of carbon, thus completing the cycle in which zinc sulphide and precipitated barium sulphate are obtained from zinc sulphate, barium sulphate, and carbon. The hydrated zinc sulphide after being washed free from alkali is filtered and dried at 100‹ C. or in a vacuum. It is then mixed with sulphur and heated to 450- 500‹ C. in a muffle furnace thereby volatilizing any cadmium sulphide and allowed to cool with exclusion of air. To prepare a lithopone, the precipitated barium sulphate after washing and drying is mixed with the desired proportion of zinc sulphide in an iron revoluble horizontal cylinder and finally passed through a fine sieve.
Patent GB-357980-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B3/00
Filed: 1930-06-30
Abstract: 357,980. Four-stroke engines. RICARDO, H. R., 21, Suffolk Street, Pall Mall, London, and ALCOCK, J. F., 10, Buckingham Road, Shoreham, Sussex. June 30, 1930, No. 19804. [Classes 7 (ii), 7 (iii), 7 (v), and 7 (vi).] Cylinders, construction of, and cooling ; cylinders receiving liquid fuel; valves.-In an engine working with liquid-fuel injection, air is admitted through a valvecontrolled inlet with a whirling motion, and an additional air charge is delivered to the cylinder at or towards the end of the induction stroke through ports uncovered by the piston and also arranged to increase the whirling effect. In the form shown in Fig. 1, the piston F<1> compresses at its lower side air admitted by a valve A<3>, and this air furnishes the additional charge which enters the cylinder through tangential ports A<1>. In a similar manner, air is supplied through these ports at the end of the working stroke for scavenging purposes. A single valve B<2> serves for both inlet and exhaust, these functions being further controlled by a rotary valve H<3>. Fuel is injected at J parallel to the axis of the combustion chamber B. The passage leading to the valve B<2> may be spirally shaped so as to give the entering air the whirling motion. In a modification, Fig. 3, separate inlet and exhaust valves P<2>, P<3> are provided, and the combustion chamber Q is formed in the end of the piston and provided with a metal heat-insulating liner Q<4>. The fuelinjection device R directs a jet parallel to the axis of the combustion chamber but at one side thereof. In another form, the combustion chamber is constituted by a concave depression in the piston, and the fuel is injected in a number of radial jets from a central sprayer. Starting is facilitated by reducing the whirling effect of the air charge either by closing some of the ports A<1>, or by holding the valve A<3> continuously open or closed. Specifications 261,435, [Class 7 (vi), Internal-combustion engines, Valves &c. for], and 342,304 are referred to.
Patent GB-874091-A (GB)
Title: Improvements in or relating to tanks for holding a coolant to be circulated through a nuclear reactor
Inventor: LONG EVERETT
IPC: G21C15/02
Filed: 1957-06-24
Abstract: 874,091. Tubular heat exchangers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 24, 1958 [June 24, 1957], No. 19904/57. Class 64(3) [Also in Group XL(a)] A heat exchanger is mounted in a coolant tank on top of a nuclear reactor. Hot sodium enters the exchanger from the tank through a baffle 58, flows down tubes 55, and returns to a lower compartment of the tank. Cool sodium enters through a header 63, flows down pipes 60 and then up over tubes 55, and leaves the exchanger through pipe 61. A central guide tube 65 is provided. Specification 846,753 is referred to.
Patent GB-1134624-A (GB)
Title: Improvements in radiation shielding
Inventor: PARKER HORACE FRANK
IPC: G21F3/00
Filed: 1965-05-11
Abstract: 1,134,624. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 27 April, 1966 [11 May, 1965], No. 19914/65. Heading G6C. A rotating top shield for a liquid-metal cooled fast reactor comprises an inner metal vessel 11 shaped by pads 13 from an outer metal vessel 12 and inner vessel tubes 11d similarly spaced by pads 13 from outer vessel tubes 12d. The inner vesesl 11 is filled with shielding concrete (not shown), and the space 14 between the vessels and maintained by the pads 13 is filled with a liquid-metal coolant, e.g. sodiumpotassium alloy. Due to a temperature differential between the upper and lower faces of the shield natural convection circulation of the coolant in the space 14 occurs and the temperature of the hot face of the concrete is reduced. The tubes 12d serve for housing control mechanisms.